[Milsurplus] [MMRCG] Another BC-611 Service Tip

[Pasquale Lombardi]

If  I did not already have the complete alignment set, I would be using
your ideas and notes to do the job Dave.
Thank you for the description and photos,
Pat
kc2rnn

On Sat, Oct 3, 2020 at 2:02 AM David Stinson <arc5 at ix.netcom.com> wrote:

> Once upon a younger world, I had the
> complete IE-17 Test Set for aligning the
> BC-611 but, alas, medical extortion did
> for my 611 collection- a fate many of
> us have watched our treasures suffer.
> A couple of these 611 chassis I'm reviving
> are ready for alignment, so had some
> head-scratching to do on how to power them.
>
> I have already drilled a spare case to use
> for alignment.   The application of a very
> nice caliper (Thank you, Mike Hanz), some
> ancient drafting compasses (compassie??),
> a protractor, a rabbit's foot plus the Lord's
> angel on my shoulder and, for a wonder,
> all but one of the holes was spot-on and
> the last was close enough to work.
> Thanks again, Mike, for the many times you've
> patiently instructed me on using these.
>
> So how to get power to the thing?
> Was mulling building a "test stand" with
> wood, using pointy nails to make contact
> with the flat power connectors and other
> impractical wool-gathering when a tiny
> dim bulb lit-up that dusty cavern between
> my ears- make the connections inside
> the radio at an easily-reached point.
> Tack-solder wires there, run them though
> one of the holes in the bottom plate and
> un-tack them when the alignment is done.
>
> Note:  These are model "F" chassis.
> A through E will be different, but the
> concept is the same.
>
> Photo- Yellow wire is A+ 1.5 VDC.
> Red is 100V B+:
> https://photos.app.goo.gl/SbtzJpc27b2TanHK9
>
> View above:
> https://photos.app.goo.gl/JWgdsN3Y5jeKr2ea7
>
> Use a medium-tip size, hot iron.  Close quarters!
> Connect the A+ wire to the solder lug on
> the rear of the A+ connector:
> https://photos.app.goo.gl/5UP8YCTUL63VCTvA6
>
> The B+ wire connects to the junction of
> R21 3.3Meg  and R22 1 Meg.  These are in
> the Plate circuit of V4:
> https://photos.app.goo.gl/BfdvgPzBQGi5HzMh7
>
> The set powered-up and aligned without a problem.
>
> GL OM ES 73 DE Dave AB5S
>
>
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